Mold Testing

Molds are part of the natural environment. Outdoors, molds play a part in nature by breaking down dead organic matter such as fallen leaves and dead trees, but indoors, mold growth should be avoided. Molds reproduce by means of tiny spores; the spores are invisible to the naked eye and float through outdoor and indoor air. Mold may begin growing indoors when mold spores land on surfaces that are wet. There are many types of mold, and none of them will grow without water or moisture.

It is impossible to get rid of all mold and mold spores indoors; some mold spores will be found floating through the air and in house dust. The mold spores will not grow if moisture is not present. Indoor mold growth can and should be prevented or controlled by controlling moisture indoors. If there is mold growth in your home, you must clean up the mold and fix the water problem. If you clean up the mold but don’t fix the water problem, then, most likely, the mold problem will come back.

Is swab sampling for mold needed? In most cases, if visible mold growth is present, swab sampling is unnecessary. However, it would be viable to identify the mold species or if it is unsure if mold is present. Since no EPA or other federal limits have been set for mold or mold spores, sampling cannot be used to check a building’s compliance with federal mold standards. 

Air sampling potentially becomes necessary if the presence of mold is suspected but cannot be visually identified. For example, mold may be present if there is a musty odor. The ultimate objective is to identify the location of mold contamination and further evaluate the extent of the contamination.